wma: Doxify some comments.

[paraslash.git] / wmadec_filter.c

diff --git a/wmadec_filter.c b/wmadec_filter.c
index bb534df528c5278198da5c116eb324bfe099da85..be726108818b826ebc4a7f17ac773eb31a1786b8 100644 (file)
--- a/wmadec_filter.c
+++ b/wmadec_filter.c
@@ -25,7 +25,6 @@
 #include <string.h>
 #include <regex.h>
 #include <sys/select.h>
-#include <stdbool.h>
 
 #include "para.h"
 #include "error.h"
@@ -72,7 +71,9 @@ struct private_wmadec_data {
        int use_exp_vlc;
        /** Whether perceptual noise is added. */
        int use_noise_coding;
+       /** Depends on number of the bits per second and the frame length. */
        int byte_offset_bits;
+       /** Only used if use_exp_vlc is true. */
        struct vlc exp_vlc;
        int exponent_sizes[BLOCK_NB_SIZES];
        uint16_t exponent_bands[BLOCK_NB_SIZES][25];
@@ -150,7 +151,7 @@ struct private_wmadec_data {
 #define VLCBITS 9
 #define VLCMAX DIV_ROUND_UP(22, VLCBITS)
 
-#define SINE_WINDOW(x) float sine_ ## x[x] __a_aligned(16)
+#define SINE_WINDOW(x) static float sine_ ## x[x] __a_aligned(16)
 
 SINE_WINDOW(128);
 SINE_WINDOW(256);
@@ -503,9 +504,8 @@ static int wma_decode_init(char *initial_buf, int len, struct private_wmadec_dat
 
        if (pwd->use_exp_vlc) {
                PARA_INFO_LOG("using exp_vlc\n");
-               init_vlc(&pwd->exp_vlc, EXPVLCBITS,
-               sizeof(wma_scale_huffbits), wma_scale_huffbits,
-               wma_scale_huffcodes, 4);
+               init_vlc(&pwd->exp_vlc, EXPVLCBITS, sizeof(wma_scale_huffbits),
+                       wma_scale_huffbits, wma_scale_huffcodes, 4);
        } else {
                PARA_INFO_LOG("using curve\n");
                wma_lsp_to_curve_init(pwd, pwd->frame_len);
@@ -769,7 +769,6 @@ static void compute_mdct_coefficients(struct private_wmadec_data *pwd,
                                *coefs++ = 0.0;
                        continue;
                }
-               mult1 = mult;
                n1 = pwd->exponent_high_sizes[bsize];
                /* compute power of high bands */
                exponents = pwd->exponents[ch] +
@@ -803,8 +802,7 @@ static void compute_mdct_coefficients(struct private_wmadec_data *pwd,
                                mult1 = sqrt(exp_power[j]
                                        / exp_power[last_high_band]);
                                /* XXX: use a table */
-                               mult1 = mult1 * pow(10,
-                                       pwd->high_band_values[ch][j] * 0.05);
+                               mult1 *= pow(10, pwd->high_band_values[ch][j] * 0.05);
                                mult1 /= (pwd->max_exponent[ch] * pwd->noise_mult);
                                mult1 *= mdct_norm;
                                for (i = 0; i < n; i++) {
@@ -1012,7 +1010,6 @@ next:
        for (ch = 0; ch < pwd->ahi.channels; ch++) {
                int n4, idx;
 
-               n = pwd->block_len;
                n4 = pwd->block_len / 2;
                if (pwd->channel_coded[ch])
                        imdct(pwd->mdct_ctx[bsize], pwd->output, pwd->coefs[ch]);